1
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Cui J, Zhao K, Sun Y, Wen R, Zhang X, Li X, Long B. Diagnosis and treatment for the early stage of cytomegalovirus infection during hematopoietic stem cell transplantation. Front Immunol 2022; 13:971156. [PMID: 36211358 PMCID: PMC9537469 DOI: 10.3389/fimmu.2022.971156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Cytomegalovirus (CMV) infection remains a frequent complication after hematopoietic stem cell transplantation (HSCT) and causes significant morbidity and mortality in transplantation recipients. In this review, we highlight the role of major risk factors that are associated with the incidence of CMV infection. Advances in immunosurveillance may predict CMV infection, allowing early interventions to prevent severe infection. Furthermore, numerous therapeutic strategies against CMV infection after HSCT are summarized. A comprehensive understanding of the current situation of CMV treatment may provide a hint for clinical practice and even promote the development of novel strategies for precision medicine.
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Affiliation(s)
| | | | | | | | | | - Xudong Li
- *Correspondence: Bing Long, longb3@ mail.sysu.edu.cn; Xudong Li,
| | - Bing Long
- *Correspondence: Bing Long, longb3@ mail.sysu.edu.cn; Xudong Li,
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2
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Peci F, Dekker L, Pagliaro A, van Boxtel R, Nierkens S, Belderbos M. The cellular composition and function of the bone marrow niche after allogeneic hematopoietic cell transplantation. Bone Marrow Transplant 2022; 57:1357-1364. [PMID: 35690693 PMCID: PMC9187885 DOI: 10.1038/s41409-022-01728-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 04/29/2022] [Accepted: 05/26/2022] [Indexed: 11/09/2022]
Abstract
Allogeneic hematopoietic cell transplantation (HCT) is a potentially curative therapy for patients with a variety of malignant and non-malignant diseases. Despite its life-saving potential, HCT is associated with significant morbidity and mortality. Reciprocal interactions between hematopoietic stem cells (HSCs) and their surrounding bone marrow (BM) niche regulate HSC function during homeostatic hematopoiesis as well as regeneration. However, current pre-HCT conditioning regimens, which consist of high-dose chemotherapy and/or irradiation, cause substantial short- and long-term toxicity to the BM niche. This damage may negatively affect HSC function, impair hematopoietic regeneration after HCT and predispose to HCT-related morbidity and mortality. In this review, we summarize current knowledge on the cellular composition of the human BM niche after HCT. We describe how pre-HCT conditioning affects the cell types in the niche, including endothelial cells, mesenchymal stromal cells, osteoblasts, adipocytes, and neurons. Finally, we discuss therapeutic strategies to prevent or repair conditioning-induced niche damage, which may promote hematopoietic recovery and improve HCT outcome.
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Affiliation(s)
- Flavia Peci
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Linde Dekker
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Anna Pagliaro
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Ruben van Boxtel
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Stefan Nierkens
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Mirjam Belderbos
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.
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3
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The Role of γδ T Cells as a Line of Defense in Viral Infections after Allogeneic Stem Cell Transplantation: Opportunities and Challenges. Viruses 2022; 14:v14010117. [PMID: 35062321 PMCID: PMC8779492 DOI: 10.3390/v14010117] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/30/2021] [Accepted: 01/05/2022] [Indexed: 02/04/2023] Open
Abstract
In the complex interplay between inflammation and graft-versus-host disease (GVHD) after allogeneic stem cell transplantation (allo-HSCT), viral reactivations are often observed and cause substantial morbidity and mortality. As toxicity after allo-HSCT within the context of viral reactivations is mainly driven by αβ T cells, we describe that by delaying αβ T cell reconstitution through defined transplantation techniques, we can harvest the full potential of early reconstituting γδ T cells to control viral reactivations. We summarize evidence of how the γδ T cell repertoire is shaped by CMV and EBV reactivations after allo-HSCT, and their potential role in controlling the most important, but not all, viral reactivations. As most γδ T cells recognize their targets in an MHC-independent manner, γδ T cells not only have the potential to control viral reactivations but also to impact the underlying hematological malignancies. We also highlight the recently re-discovered ability to recognize classical HLA-molecules through a γδ T cell receptor, which also surprisingly do not associate with GVHD. Finally, we discuss the therapeutic potential of γδ T cells and their receptors within and outside the context of allo-HSCT, as well as the opportunities and challenges for developers and for payers.
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4
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de Koning C, Tao W, Lacna A, van Veghel K, Horwitz ME, Sanz G, Jagasia MH, Wagner JE, Stiff PJ, Hanna R, Cilloni D, Valcárcel D, Peled T, Galamidi Cohen E, Goshen U, Pandit A, Lindemans CA, Jan Boelens J, Nierkens S. Lymphoid and myeloid immune cell reconstitution after nicotinamide-expanded cord blood transplantation. Bone Marrow Transplant 2021; 56:2826-2833. [PMID: 34312498 PMCID: PMC8563413 DOI: 10.1038/s41409-021-01417-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 06/23/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023]
Abstract
Omidubicel (nicotinamide-expanded cord blood) is a potential alternative source for allogeneic hematopoietic cell transplantation (HCT) when an HLA-identical donor is lacking. A phase I/II trial with standalone omidubicel HCT showed rapid and robust neutrophil and platelet engraftment. In this study, we evaluated the immune reconstitution (IR) of patients receiving omidubicel grafts during the first 6 months post-transplant, as IR is critical for favorable outcomes of the procedure. Data was collected from the omidubicel phase I-II international, multicenter trial. The primary endpoint was the probability of achieving adequate CD4+ T-cell IR (CD4IR: > 50 × 106/L within 100 days). Secondary endpoints were the recovery of T-cells, natural killer (NK)-cells, B-cells, dendritic cells (DC), and monocytes as determined with multicolor flow cytometry. LOESS-regression curves and cumulative incidence plots were used for data description. Thirty-six omidubicel recipients (median 44; 13-63 years) were included, and IR data was available from 28 recipients. Of these patients, 90% achieved adequate CD4IR. Overall, IR was complete and consisted of T-cell, monocyte, DC, and notably fast NK- and B-cell reconstitution, compared to conventional grafts. Our data show that transplantation of adolescent and adult patients with omidubicel results in full and broad IR, which is comparable with IR after HCT with conventional graft sources.
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Affiliation(s)
- Coco de Koning
- University Medical Center Utrecht, Utrecht, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Weiyang Tao
- University Medical Center Utrecht, Utrecht, The Netherlands
| | - Amelia Lacna
- University Medical Center Utrecht, Utrecht, The Netherlands
| | | | | | - Guillermo Sanz
- Hospital Universitario y Politécnico la Fe, València, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Instituto de Salud Carlos III, Madrid, Spain
| | | | | | | | | | | | | | | | | | | | | | - Caroline A Lindemans
- University Medical Center Utrecht, Utrecht, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Jaap Jan Boelens
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Stefan Nierkens
- University Medical Center Utrecht, Utrecht, The Netherlands.
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.
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5
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Immune control of cytomegalovirus reactivation in stem cell transplantation. Blood 2021; 139:1277-1288. [PMID: 34166512 DOI: 10.1182/blood.2020010028] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/22/2021] [Indexed: 11/20/2022] Open
Abstract
The reactivation of viruses from latency after allogeneic stem cell transplantation (SCT) continues to represent a major clinical challenge requiring sophisticated monitoring strategies in the context of prophylactic and/or pre-emptive antiviral drugs that are associated with significant expense, toxicity, and rates of failure. Accumulating evidence has demonstrated the association of polyfunctional virus-specific T-cells with protection from viral reactivation, affirmed by the ability of adoptively transferred virus-specific T-cells to prevent and treat reactivation and disease. The roles of innate cells (NK cells) in early viral surveillance, and dendritic cells in priming of T-cells have also been delineated. Most recently, a role for strain-specific humoral responses in preventing early cytomegalovirus (CMV) reactivation has been demonstrated in preclinical models. Despite these advances, many unknowns remain: what are the critical innate and adaptive responses over time, is the origin (e.g. recipient versus donor) and localization (e.g. in parenchymal tissue versus lymphoid organs) of these responses important, how does GVHD and the prevention/treatment thereof (e.g. high dose steroids) impact the functionality and relevance of a particular immune axis, do the immune parameters that control latency, reactivation and dissemination differ, and what is the impact of new antiviral drugs on the development of enduring antiviral immunity. Thus, whilst antiviral drugs have provided major improvements over the last two decades, understanding the immunological paradigms underpinning protective antiviral immunity after SCT offers the potential to generate non-toxic immune-based therapeutic approaches for lasting protection from viral reactivation.
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6
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Tecchio C, Cassatella MA. Uncovering the multifaceted roles played by neutrophils in allogeneic hematopoietic stem cell transplantation. Cell Mol Immunol 2021; 18:905-918. [PMID: 33203938 PMCID: PMC8115169 DOI: 10.1038/s41423-020-00581-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (alloHSCT) is a life-saving procedure used for the treatment of selected hematological malignancies, inborn errors of metabolism, and bone marrow failures. The role of neutrophils in alloHSCT has been traditionally evaluated only in the context of their ability to act as a first line of defense against infection. However, recent evidence has highlighted neutrophils as key effectors of innate and adaptive immune responses through a wide array of newly discovered functions. Accordingly, neutrophils are emerging as highly versatile cells that are able to acquire different, often opposite, functional capacities depending on the microenvironment and their differentiation status. Herein, we review the current knowledge on the multiple functions that neutrophils exhibit through the different stages of alloHSCT, from the hematopoietic stem cell (HSC) mobilization in the donor to the immunological reconstitution that occurs in the recipient following HSC infusion. We also discuss the influence exerted on neutrophils by the immunosuppressive drugs delivered in the course of alloHSCT as part of graft-versus-host disease (GVHD) prophylaxis. Finally, the potential involvement of neutrophils in alloHSCT-related complications, such as transplant-associated thrombotic microangiopathy (TA-TMA), acute and chronic GVHD, and cytomegalovirus (CMV) reactivation, is also discussed. Based on the data reviewed herein, the role played by neutrophils in alloHSCT is far greater than a simple antimicrobial role. However, much remains to be investigated in terms of the potential functions that neutrophils might exert during a highly complex procedure such as alloHSCT.
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Affiliation(s)
- Cristina Tecchio
- Department of Medicine, Section of Hematology and Bone Marrow Transplant Unit, University of Verona, Verona, Italy.
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7
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Dekker L, de Koning C, Lindemans C, Nierkens S. Reconstitution of T Cell Subsets Following Allogeneic Hematopoietic Cell Transplantation. Cancers (Basel) 2020; 12:E1974. [PMID: 32698396 PMCID: PMC7409323 DOI: 10.3390/cancers12071974] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/10/2020] [Accepted: 07/16/2020] [Indexed: 02/07/2023] Open
Abstract
Allogeneic (allo) hematopoietic cell transplantation (HCT) is the only curative treatment option for patients suffering from chemotherapy-refractory or relapsed hematological malignancies. The occurrence of morbidity and mortality after allo-HCT is still high. This is partly correlated with the immunological recovery of the T cell subsets, of which the dynamics and relations to complications are still poorly understood. Detailed information on T cell subset recovery is crucial to provide tools for better prediction and modulation of adverse events. Here, we review the current knowledge regarding CD4+ and CD8+ T cells, γδ T cells, iNKT cells, Treg cells, MAIT cells and naive and memory T cell reconstitution, as well as their relations to outcome, considering different cell sources and immunosuppressive therapies. We conclude that the T cell subsets reconstitute in different ways and are associated with distinct adverse and beneficial events; however, adequate reconstitution of all the subsets is associated with better overall survival. Although the exact mechanisms involved in the reconstitution of each T cell subset and their associations with allo-HCT outcome need to be further elucidated, the data and suggestions presented here point towards the development of individualized approaches to improve their reconstitution. This includes the modulation of immunotherapeutic interventions based on more detailed immune monitoring, aiming to improve overall survival changes.
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Affiliation(s)
- Linde Dekker
- Princess Máxima Center for Pediatric Oncology, Utrecht University, Heidelberglaan 25, 3584 CS Utrecht, The Netherlands; (L.D.); (C.L.)
| | - Coco de Koning
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands;
| | - Caroline Lindemans
- Princess Máxima Center for Pediatric Oncology, Utrecht University, Heidelberglaan 25, 3584 CS Utrecht, The Netherlands; (L.D.); (C.L.)
| | - Stefan Nierkens
- Princess Máxima Center for Pediatric Oncology, Utrecht University, Heidelberglaan 25, 3584 CS Utrecht, The Netherlands; (L.D.); (C.L.)
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands;
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van Roessel I, Prockop S, Klein E, Boulad F, Scaradavou A, Spitzer B, Kung A, Curran K, O'Reilly RJ, Kernan NA, Cancio M, Boelens JJ. Early CD4+ T cell reconstitution as predictor of outcomes after allogeneic hematopoietic cell transplantation. Cytotherapy 2020; 22:503-510. [PMID: 32622752 DOI: 10.1016/j.jcyt.2020.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND An association between early CD4+ T cell immune reconstitution (CD4+ IR) and survival after T-replete allogeneic hematopoietic cell transplantation (HCT) has been previously reported. Here we report validation of this relationship in a separate cohort that included recipients of ex vivo T-cell-depleted (TCD) HCT. We studied the relationship between CD4+ IR and clinical outcomes. METHODS A retrospective analysis of children/young adults receiving their first allogeneic HCT for any indication between January 2008 and December 2017 was performed. We related early CD4+ IR (defined as achieving >50 CD4+ T cells/µL on two consecutive measures within 100 days of HCT) to overall survival (OS), relapse, non-relapse mortality (NRM), event-free survival (EFS) and acute graft-versus-host disease (aGVHD). Fine and Gray competing risk models and Cox proportional hazard models were used. RESULTS In this analysis, 315 patients with a median age of 10.4 years (interquartile range 5.0-16.5 years) were included. The cumulative incidence of CD4+ IR at 100 days was 66.7% in the entire cohort, 54.7% in TCD (N = 208, hazard ratio [HR] 0.47, P < 0.001), 90.0% in uCB (N = 40) and 89.6% in T-replete (N = 47) HCT recipients. In multi-variate analyses, not achieving early CD4+ IR was a predictor of inferior OS (HR 2.35, 95% confidence interval [CI] 1.46-3.79, P < 0.001) and EFS (HR 1.80, 95% CI 1.20-2.69, P = 0.004) and increased NRM (HR 6.58, 95% CI 2.82-15.38, P < 0.001). No impact of CD4+ IR on relapse or aGVHD was found. Within the TCD group, similar associations were observed. CONCLUSION In this HCT cohort, including recipients of TCD HCT, we confirmed that early CD4+ IR was an excellent predictor of outcomes. Finding strategies to predict or improve CD4+ IR may influence outcomes.
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Affiliation(s)
- Ichelle van Roessel
- Department of Pediatrics, UMC Utrecht and Princess Maxima Centrum for Pediatric Oncology, Utrecht, the Netherlands
| | - Susan Prockop
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
| | - Elizabeth Klein
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Farid Boulad
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Andromachi Scaradavou
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Barbara Spitzer
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Andrew Kung
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Kevin Curran
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Richard J O'Reilly
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Nancy A Kernan
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Maria Cancio
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Jaap Jan Boelens
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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9
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Serrano-Del Valle A, Naval J, Anel A, Marzo I. Novel Forms of Immunomodulation for Cancer Therapy. Trends Cancer 2020; 6:518-532. [PMID: 32460005 DOI: 10.1016/j.trecan.2020.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/07/2020] [Accepted: 02/19/2020] [Indexed: 02/07/2023]
Abstract
In recent years immunotherapy has provided new hope for cancer patients. However, some patients eventually relapse. Immunological responses are thought to underlie the long-term effects of conventional or targeted therapies. Whether this influence emerges from direct effects on cancer cells through immunogenic cell death (ICD) or by modulating the immune environment requires further clarification. ICD-related molecular mechanisms are also shared by cell-intrinsic defense responses that combat foreign intrusions. Indeed, we could potentially mimic and harness these processes to improve cancer immunogenicity. In addition, the microbiome is materializing as a missing factor in the cancer-immune therapy axis. The emerging idea of manipulating the gut microbiota to improve responses to anticancer therapy is becoming increasingly popular, but further clinical authentication is needed.
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Affiliation(s)
- Alfonso Serrano-Del Valle
- Apoptosis, Immunity, and Cancer Group, Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, and Aragon Health Research Institute (IIS-Aragon), Zaragoza 50009, Spain.
| | - Javier Naval
- Apoptosis, Immunity, and Cancer Group, Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, and Aragon Health Research Institute (IIS-Aragon), Zaragoza 50009, Spain
| | - Alberto Anel
- Apoptosis, Immunity, and Cancer Group, Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, and Aragon Health Research Institute (IIS-Aragon), Zaragoza 50009, Spain
| | - Isabel Marzo
- Apoptosis, Immunity, and Cancer Group, Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, and Aragon Health Research Institute (IIS-Aragon), Zaragoza 50009, Spain
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10
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Solans BP, Chiesa R, Doncheva B, Prunty H, Veys P, Trocóniz IF, Standing JF. Modelling of neutrophil dynamics in children receiving busulfan or treosulfan for haematopoietic stem cell transplant conditioning. Br J Clin Pharmacol 2020; 86:1537-1549. [PMID: 32077123 DOI: 10.1111/bcp.14260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 01/16/2020] [Accepted: 02/01/2020] [Indexed: 12/11/2022] Open
Abstract
AIMS Busulfan and treosulfan are cytotoxic agents used in the conditioning regime prior to paediatric haematopoietic stem cell transplantation (HSCT). These agents cause suppression of myeloid cells leaving patients severely immunocompromised in the early post-HSCT period. The main objectives were: (i) to establish a mechanistic pharmacokinetic-pharmacodynamic (PKPD) model for the treatment and engraftment effects on neutrophil counts comparing busulfan and treosulfan-based conditioning, and (ii) to explore current dosing schedules with respect to time to HSCT. METHODS Data on 126 patients, 72 receiving busulfan (7 months-18 years, 5.1-47.0 kg) and 54 treosulfan (4 months-17 years, 3.8-35.8 kg), were collected. In total, 8935 neutrophil count observations were recorded during the study period in addition to drug concentrations to develop a mechanistic PKPD model. Absolute neutrophil count profiles were modelled semimechanistically, accounting for transplant effects and differing set points pre- and post-transplant. RESULTS PK were best described by 2-compartment models for both drugs. The Friberg semimechanistic neutropenia model was applied with a linear model for busulfan and a maximum efficacy model for treosulfan describing drug effects at various stages of neutrophil maturation. System parameters were consistent across both drugs. The HSCT was represented by an amount of progenitor cells enhancing the neutrophils' proliferation and maturation compartments. Alemtuzumab was found to enhance the proliferative rate under which the absolute neutrophil count begin to grow after HSCT. CONCLUSION A semimechanistic PKPD model linking exposure to either busulfan or treosulfan to the neutrophil reconstitution dynamics was successfully built. Alemtuzumab coadministration enhanced the neutrophil proliferative rate after HSCT. Treosulfan administration was suggested to be delayed with respect to time to HSCT, leaving less time between the end of the administration and stem cell infusion.
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Affiliation(s)
- Belén P Solans
- Pharmacometrics and Systems Pharmacology, Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Robert Chiesa
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, London, UK
| | - Bilyana Doncheva
- Department of Pharmacy, Great Ormond Street Hospital for Children, London, UK
| | - Helen Prunty
- Department of Chemical Pathology, Great Ormond Street Hospital for Children, London, UK
| | - Paul Veys
- Bone Marrow Transplantation Department, Great Ormond Street Hospital for Children, London, UK
| | - Iñaki F Trocóniz
- Pharmacometrics and Systems Pharmacology, Department of Pharmaceutical Technology and Chemistry, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Joseph F Standing
- Department of Pharmacy, Great Ormond Street Hospital for Children, London, UK.,Infection, Immunity, Inflammation Programme, UCL Great Ormond Street Institute of Child Health, London, UK.,Paediatric Infectious Diseases Group, St George's, University of London, UK
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11
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Boelens JJ, Hosszu KK, Nierkens S. Immune Monitoring After Allogeneic Hematopoietic Cell Transplantation: Toward Practical Guidelines and Standardization. Front Pediatr 2020; 8:454. [PMID: 32974239 PMCID: PMC7472532 DOI: 10.3389/fped.2020.00454] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022] Open
Abstract
Hematopoietic cell transplantation (HCT) is often a last resort, but potentially curative treatment option for children suffering from hematological malignancies and a variety of non-malignant disorders, such as bone marrow failure, inborn metabolic disease or immune deficiencies. Although efficacy and safety of the HCT procedure has increased significantly over the last decades, the majority of the patients still suffer from severe acute toxicity, viral reactivation, acute or chronic graft-versus-host disease (GvHD) and/or, in case of malignant disease, relapses. Factors influencing HCT outcomes are numerous and versatile. For example, there is variation in the selected graft sources, type of infused cell subsets, cell doses, and the protocols used for conditioning, as well as immune suppression and treatment of adverse events. Moreover, recent pharmacokinetic studies show that medications used in the conditioning regimen (e.g., busulphan, fludarabine, anti-thymocyte globulin) should be dosed patient-specific to achieve optimal exposure in every individual patient. Due to this multitude of variables and site-specific policies/preferences, harmonization between HCT centers is still difficult to achieve. Literature shows that adequate immune recovery post-HCT limits both relapse and non-relapse mortality (death due to viral reactivations and GvHD). Monitoring immune parameters post-HCT may facilitate a timely prediction of outcome. The use of standardized assays to measure immune parameters would facilitate a fast comparison between different strategies tested in different centers or between different clinical trials. We here discuss immune cell markers that may contribute to clinical decision making and may be worth to standardize in multicenter collaborations for future trials.
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Affiliation(s)
- Jaap Jan Boelens
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Kinga K Hosszu
- Stem Cell Transplantation and Cellular Therapies, MSK Kids, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Stefan Nierkens
- Princess Máxima Center for Pediatric Oncology and UMC Utrecht, Utrecht, Netherlands
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12
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Pai SY. Treatment of primary immunodeficiency with allogeneic transplant and gene therapy. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2019; 2019:457-465. [PMID: 31808905 PMCID: PMC6913427 DOI: 10.1182/hematology.2019000052] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The treatment of primary immunodeficiency disorders with allogeneic hematopoietic cell transplantation (HCT) has a history dating back to 1968 with the first successful transplant for a patient with severe combined immunodeficiency (SCID). The omission of conditioning for patients with SCID owing to their inability to reject allogeneic grafts and the increasing use of reduced intensity conditioning regimens often result in a state of mixed or split donor-recipient chimerism. The use of gene therapy (GT) via retroviral or lentiviral transduction of autologous CD34+ hematopoietic stem and progenitor cells is expected to correct only a portion of the hematopoietic stem cell compartment. The consequences of partial correction after either form of cellular therapy differ according to how the genetic deficiency affects immune cell development and function. Moreover, the conditioning regimen or lack thereof impacts the cell lineages at risk of partial correction. Advances in our understanding of immune reconstitution after HCT and GT for SCID, Wiskott-Aldrich syndrome, and chronic granulomatous disease are discussed.
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Affiliation(s)
- Sung-Yun Pai
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, MA
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA; and
- Harvard Medical School, Boston, MA
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Islam P, Horwitz ME. Small-molecule nicotinamide for ex vivo expansion of umbilical cord blood. Exp Hematol 2019; 80:11-15. [PMID: 31786243 DOI: 10.1016/j.exphem.2019.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/09/2019] [Accepted: 11/23/2019] [Indexed: 11/17/2022]
Abstract
Umbilical cord blood transplant is an alternative graft source for patients lacking a human leukocyte antigen-matched donor; however, delayed engraftment times have historically resulted in transplant-related morbidity and mortality from complications such as infections and ineffective hematopoiesis. Recent advances in ex vivo expansion techniques have successfully augmented the initial cell dose delivered from an umbilical cord blood graft, leading to improved immune reconstitution, durable hematopoiesis, decreased transplant-related morbidity and mortality, and better outcomes. Herein we review the data for existing and developing ex vivo expansion techniques, with a focus on the preclinical and clinical data for nicotinamide-mediated cord blood expansion across both malignant and benign hematologic indications.
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Affiliation(s)
- Prioty Islam
- Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, Durham, NC.
| | - Mitchell E Horwitz
- Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, Durham, NC
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Ohta T, Sugio Y, Imanaga H, Oku S, Ohno Y. Conditioning regimen with a 75% dose of standard busulfan/cyclophosphamide plus fludarabine before cord blood transplantation in older patients with AML and MDS. Int J Hematol 2019; 110:347-354. [PMID: 31197737 DOI: 10.1007/s12185-019-02688-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 12/13/2022]
Abstract
In this retrospective study, we aimed to establish a conditioning regimen for older patients receiving cord blood transplantation (CBT). This study included 21 older patients [median age 65 (58-73) years] with acute myeloid leukemia and myelodysplastic syndrome who underwent single CBT following a conditioning regimen comprising fludarabine (FLU) 125-175 mg/m2, busulfan (BU) 9.6 mg/kg, and cyclophosphamide (CY) 90 mg/kg. Twelve patients (57.1%) were considered high or very high risk according to the disease risk index. Nineteen achieved neutrophil engraftment at a median of 19 days (range 14-29 days) after CBT (cumulative incidence 90.5%). During a median observation period of 24.3 months, the overall survival (OS) rates at 100 days and 2 years were 76.2% and 47.6%, respectively, with cumulative 2-year relapse and non-relapse mortality (NRM) rates of 19.0% and 38.1%, respectively. Infectious disease was the leading cause of NRM (n = 5) and occurred within 100 day post-transplantation in two patients. This suggested that the administration of a reduced BU/CY plus FLU regimen to older patients receiving CBT enables an early recovery with high neutrophil engraftment, relapse suppression, and acceptable NRM rates.
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Affiliation(s)
- Takanori Ohta
- Department of Internal Medicine, Kitakyushu Municipal Medical Center, 2-1 Bashyaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan.
| | - Yasuhiro Sugio
- Department of Internal Medicine, Kitakyushu Municipal Medical Center, 2-1 Bashyaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Hiroshi Imanaga
- Department of Internal Medicine, Kitakyushu Municipal Medical Center, 2-1 Bashyaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Seidou Oku
- Department of Internal Medicine, Kitakyushu Municipal Medical Center, 2-1 Bashyaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
| | - Yuju Ohno
- Department of Internal Medicine, Kitakyushu Municipal Medical Center, 2-1 Bashyaku, Kokurakita-ku, Kitakyushu, 802-0077, Japan
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